Showerhead



FIG. 1 is a top, front, left perspective view of a showerhead showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a top, rear, right perspective view thereof.

The broken lines in FIGS. 1-8 are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a showerhead, as shown and described. 